<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
</head>
<style>
    .box{
        height: 100px;
        width: 100px;
        border: 1px red solid; 
        /* margin-top: 50px; */
        margin-bottom: 100px;
    }
    .box1{
        height: 50px;
        width: 50px;
        border: 1px red solid; 
        margin-top: 100px;
        /* float: right; */
        /* float: left; */
    }
</style>

<body>
    <div class="box">
       
    </div>
    <div class="box1"></div> 
</body>
</html>